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Finding the Fourth Proportional to 114,706.99, 158,318.30 and 73,287.48

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Solution

The fourth proportional to 114,706.99, 158,318.30 and 73,287.48 is: 101,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,706.99 : 158,318.30 = 73,287.48 : x
  2. Step 2: Convert to fraction form
    114,706.99/158,318.30 = 73,287.48/x
  3. Step 3: Cross multiply
    114,706.99x = 158,318.30 × 73,287.48
  4. Step 4: Simplify right side
    114,706.99x = 11,602,749,244.88
  5. Step 5: Solve for x
    x = 11,602,749,244.88/114,706.99
  6. Step 6: Final answer
    x = 101,151.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.